Country music icon Dolly Parton secretly travelled to Germany to undergo experimental cancer treatment approximately one year before her death, according to sources close to the star.
The singer, who passed away at the age of 80 on August 25, flew by private jet to Frankfurt and spent roughly a week receiving care before returning home.
Sources close to Parton who spoke to American news outlet TMZ reported that the singer believed the treatment had successfully helped her regain her strength and felt that the procedure had worked effectively.
Secret health battle
Parton chose to keep her battle with cancer hidden from the public and from the vast majority of her family members throughout her illness.
Her sister Stella Parton revealed details about the secret diagnosis during an interview on the television program CBS Mornings on Wednesday, September 9.

Stella Parton explained that her sister had selected only a small group of trusted individuals to share her medical condition with because she could not bear to see people sad. She stated that her sister was unable to handle negative situations and wished to spare both her fans and most of her relatives from worrying, noting that only those closest to her were aware of what she was going through.
The secret trip to Germany was also highlighted in social media coverage published by Daily Mail Celebrity on September 22.
Background and legacy
Dolly Parton was a celebrated American country singer, songwriter, actress, and philanthropist whose career spanned over six decades. Known worldwide for hit songs including Jolene, 9 to 5, and I Will Always Love You, she became one of the most prominent figures in entertainment history.
Frankfurt, located in central Germany, is a major international transit and financial hub known for its advanced medical facilities and research centers.
Stella Parton, also a country singer and songwriter, is the younger sister of Dolly Parton and has previously spoken on behalf of the family on public occasions.
